Bobbin supporting device for textile spinning and like machines



May 6, I958 B.'H. J. QUINT BOBBIN SUPPORTING DEVICE FOR TEXTILE SPINNINGAND LIKE MACHINES 2 Sheets-Sheet 1 Filed Sept. 26, 1955 BERNARD .NENRYHHIN UNIT.

lNl/EN 7'0 mm-n 6%;

1477'0ENEY May 6', 1958 B H- J. mm 2,833,490

BOBBIN SUPPOIQTING DEVICE FOR TEXTILE SPINNING AND LIKE MACHINES FiledSept. 26, 1955 v 2 Sheets-Sheet 2 I simian mun JOHN aunn.

BY/ZZM ATTORNEY Unite States Patent i Bernard Henry John Quint, Swindon,England, assignor to The Plessey Company Limited, Ilford, England, aBritish company Application September 26, 1955, Serial No. 536,636

Claims priority, application Great Britain March 25, 1955 7 Claims. (Cl.242--130.2)

The present invention relates to bobbin supporting devices forsuspending bobbins in, for example, the creels of textile spinning orother like machines of the kind in which the bobbin is suspended from asupporting spindle by detents which engage a shoulder provided withinthe bobbin bore, the spindle being carried by a ball or other universaljoint supported by the creel or the like of the machine, the detentsbeing operable automatically into or out of the bobbin engaging positionrespectively by the action of positioning or removing a bobbin from thesupporting device.

In my United States of America patent application, Serial No. 376,584there is described a bobbin supporting device having supports moveableinto and out of a bobbin position, a rotatable spindle and a collarmounted so as to be slideable in the axial direction-of said spindle andmeans operable as a result of a two-way movement of said collar toefiect axial movement and intermittent rotation of the spindleto permitmovement of the bobbin supports into or out of the bobbin supportingposition.

The specific embodiment described in my'parent specification No. 376,584comprises a tubular sleeve having supporting means at one end, bobbinsupports mounted on a common pivot at the opposite end of the sleeve, aspindle rotatably mounted within the bore of the tubular sleeve,

said spindle being provided with two sets of opposed splines and cams,said sleeve having diametrically opposed studs arranged intermediatelyof the length of the bore slideably engaging with the splines and cams,a collar surmounting said tubular sleeve above the splines slideableaxially and being rotatablyconnected to said spindle for imparting axialmovement thereto, the studs on said sleeve engaging with alternate setsof cams whereby on the upward and return stroke of said collar effectsan intermittent angular movement of the spindle to permit movement ofthe bobbin supports.

According to the present invention the bobbin device consists of atubular sleeve having supporting means at one end, bobbin supportsmounted in a common pivot at the opposite end of the sleeve, a spindleprovided with a set of splines and cams above and below acircumferential groove, said spindle is rotatable and slides axiallywithin the sleeve, each set of splines and earns operatively engage afixed pin to impart angular movement of the spindle by the actuation ofa collar surmounting the sleeve to permit movement of the bobbinsupports.

If desired the bobbin supports may be spring loaded to assist thesupports to move radially outwards to the bobbin engaging position whenthey are required to support a bobbin.

In order that the invention may be clearly understood and carried intoefiect, an example of the same will now be described by aid of theaccompanying drawings in which- Fig. 1 is a longitudinal section of thedevice showing part of a bobbin in the supporting position,

Figs. 2 and 3 are taken from opposite ends of the device shown in Fig.1,

2,833,490 Patented May 6 1958 Fig.4 is an elevation view of the deviceshown in -Fig. 1,

Fig. is a view showing the spindle, Figs- 6 and 7 are views taken fromopposite ends of 5 the spindle, and

Fig. 8 shows in section one half portion of the tubular mernber, twosuch portions being secured together to form the complete fabricatedtubular member shown in Fig. 4.

The device shown in the drawing comprises a tubular sleeve 1, dividedlongitudinally in two halves, is provided i with a pivot pin 2 whichextends transversely across the bore of the sleeve 1 and upon which ispivotally mounted a pair of levers 3. A pip or ear 4 is formed on theedge of each lever 3 close to the pivoted end of the levers, which serveas a seating or location for a compression spring 5; The upper end 6 ofeach lever 3 is formed as a bobbin engaging support and projectsupwardly from the pivot pin 2, the lower end of each lever 3 projectingdownwardly of said pivot pin 2. The wall of the tubular sleeve 1 isslotted at opposite points, the slots 7 being offset as shown in Fig. 2so as to be in alignment with the levers 3 and of a length to permitfree pivoted movement of the levers 3 in one direction so that theirupper bobbin supporting ends 6 project radially outwards from the slots,the lower edges of the levers 3 when in this position being inengagement with the lower end of the bore of the tubular sleeve 1 tolimit the-said outward radial movement of the upper ends. 7

Mounted within the bore 8 of the tubular sleeve 1 is a spindle 9 whichis axially displaceable, from a lower to an upper position, the spindle9 being also rotatable during its axial movement.

The spindle 9 has a circumferential groove 10 intermediate of its lengthand four splines are situated immediately above and below the groove,the splines above 1 the groove 10 are indicated by numeral 11, thesplines below the groove consist of two long splines 12 and two shortones 13, said splines on opposite sides of the groove are oil-set at andthe ends of each spline being sawtoothed, the helix angle of the toothof the lower set being opposite to that of the upper set, thesaw-toothed portion providing upper and lower opposed cam surfaces 14,15 respectively.

45 The bore of the tubular sleeve 1 is provided with pins I, 20 and 24(Fig. 8) which project radially inwardly be: tween the splines on theupper and lower end of the spindle 9 respectively.

A guide rod 17 houses within the tubular sleeve 1 has the lower enddisposed within the bore of the spindle 9. Said spindle 9 is maintainedin the lower position by a compression spring 18 mounted over the guiderod 17 in which one end abuts against the shoulder 19 formed on the rodand the opposite end against a shoulder 16 within the bore of thespindle 9. The tubular sleeve 1 is provided with a pin or pins 20 nearthe upper end, "which is or are adapted to enter the upper set ofsplines 11 when the spindle 9 is displaced axially as herein set forth.-

The spindle 9 is adapted to be moved axially within the bore of thetubular sleeve 1 by a collar 21 arranged exteriorly thereof so as to beaxially slideable on the sleeve 1.

The collar 21 is provided with pins 22 which extend radially inwardsthrough longitudinal slots 23 formed in the wall of the tubular sleeve1, the inner ends of each pin 22 engaging in the circumferential groove10 on the spindle.

Upon axial upward movement of the collar 21 the cam surfaces 14 abovethe circumferential groove'10 79 strike against the pin or pins 20 nearthe upper end of the tubular sleeve 1, thereby rotating the spindle 45.Upon return axial downward stroke, pin or pins 24 pro vided in the lowerend of .the tubular sleeve 1 strike the cams beneath the groove in saidspindle 9 rotating same a further 45 and enter the short spline orsplines 13, the downward movement .of the spindle 9 is arrested and thelevers 3 are free to collapse within the bore of the sleeve 1. Tofacilitate the withdrawal of the levers 3 the lower end of thespindle'may be slotted, as indicated by numeral 25 (Fig. 6) whereby abobbin 26 previously inserted on to the device can be withdrawn. Toreplace a fresh bobbin a similar operation is applied to the. collar 21when theispindle 9 is rotated intermit' tently over 90", to enable thepinor pins 24 fixed to the tubular sleeve 1 to enter the long spline orsplines 12 and the surface of said spindle 9 adjacent the levers 3 serveas abutments to prevent same from collapsing.

The device is adapted to be suspended. by its upper end so as to befreely rotatable on a universalball type joint from the creel of atextile or othermachine.

A simple construction of ball joint is shown in Fig. l of theaccompanying drawings and consists of a ball race 26 the inner race 27of which is contained within a recess 28 formed in the flanged upper end29 of the tubular sleeve 1. The inner race 27 engages a sphericalsurface30 formed on the lower end of a spigot 31 the upper end of the spigot 31being threadedas shown at .32 and adapted to be screwed into a tappedhole in the machine creel. The ball race 26 is secured in positionbyproviding the outer race .33 with a plurality of circumferentiallyspaced lugs 34 which are pressed over on assembly to embrace theperipheral edge of the flanged,

upper end of the tubular sleevel.

Preferably the device is provided at its upper end with a dust cover 35which is secured to the spigot '31 by a nut 36 the dust cover '35 beingclamped by the nut 36 against a flange 37 formed integral with thespigot 31.

The tubular sleeve 1 is for preference constructed in two halves. Inthis construction each .half portion;- see Fig. 8', is formed as adie-casting or plastic moulding, the two half portions when assembledtogether being secured at thelower end by the pivot pin 2 and at theupper end by the turned over lugs 34 of the upper race 33.

I claim:

1. A bobbin supporting device for suspending bobbins in, for example,the creels of textile spinning machines comprising a tubular sleevehaving supporting means at one end for'attachment to the machine,'bobbinsupporting detents carried by and adjacent the opposite endof thetubular member, a spindle mounted within the bore of the tubular member,a collar surmounting said tubular member slidable axially along saidtubular sleeve and being rotatably connected to said spindle, meansabove and below the rotatable connection between said sleeve and collarfor imparting intermittent angular motion to the spindle as a. result ofaxial two-way movement of the spindle to permit movement of the supportsinto or out of the bobbin supporting position.

2. A bobbin supporting 'device comprising a tubular sleeve havingsupporting means at one end, bobbin supporting detents mounted on acommon pivot atthe opposite 3 end of the tubular sleeve, a spindlerotatably mounted within the bore of the tubular sleeve, a collarsurmounting said tubular sleeve slidable axially and being rotatablyconnected to said spindle, said spindle being provided with a set ofsplines and earns above and below the rotatable connection engaging withpins arranged intermediately the length of the bore of said sleeve forimparting intermittent angular movement of the spindle upon an upwardand return stroke of the collar to permit movement of said detents.

3. A bobbin supporting device comprising a tubular sleeve havingsupporting means at one end, a pair of supporting detents, mounted on acommon pivot at the opposite end ofthe tubular sleeve, a spindlerotatably mounted within the bore of the tubular sleeve, a collarsurmounting said tubular sleeve slidable axially and being rotatablyconnected to said spindle, said spindle being provided with a set ofsplines and cams above and below the rotatable connection engaging withpins arranged intermediately the length of the bore of said sleeve, theupper set of splines and cams being out of alignment with the lower setof splines and earns, for imparting intermittent angular movement of thespindle upon an upward and return stroke of the collar to permitmovement of said detents.

4. A bobbin supporting device comprising a tubular sleeve havingsupporting means at one end, a pair of supporting detents, mounted on acommon pivot at the opposite end of the tubular sleeve, a spindlerotatably mounted within the bore of the tubular sleeve, said spindlehaving a slot at one end for receiving the common pivot for said levers,a collar surmounting said tubular sleeve slidable' axially and beingrotatably connected to said spindle, said spindle being provided with aset of splines and-cams above and below the rotatable connectionengaging with pins arranged intermediately the length of the bore ofsaid sleeve, the upper set of splines and earns being oil-set at 45 inrelation to the lower set of splines and cams, the upper set of splinesand earns being out of alignment with the lower set of splines andearns, for imparting intermittent angular movement of the spindle uponan upward and return stroke of the collar to permit movement of saiddetents.

5. A bobbin supporting device according to claim 3 including a pair ofspring loaded levers, mounted on a common pivot Within the bore of thesleeve.

6. A bobbin support according to claim 3 including a pair of springloaded levers mounted on a common pivot within the bore of the sleeveand a slot in the lower end ofthe spindle to receive the spring loadingupon withdrawal of said levers. v

7. A bobbin support according to claim 3 having a guide'rod housed inthe sleeve and a compression spring mounted on the guide rod maintainingthe spindle in the lower position.

References Cited in the file of this patent UNITED STATES PATENTS

